Steel-like strength for its weight ensures durability in demanding fly tying applications
Gel spun polyethylene construction provides a supple, flat-tie finish for smooth patterns
Available in a wide selection of colors and sizes to suit any fly tying project
Suitable for both freshwater and saltwater fly tying, increasing versatility
50-yard spool offers ample material for multiple projects
Summarized by Shop
Ultra GSP Thread
Now available in 75 denier
Ties flat with a minimum of bulk
The largest selection of colors and sizes anywhere
Strong, supple, and versatile Ultra GSP is the strongest thread on the planet. Boasting steel-like strength for its weight, this thread really lets you put the pressure on! Our gel spun polyethylete is supple,
Material
Gel spun polyethylene (polypropylene variant available)